Centrifugal dirt collector



July 26, 1927.- I ,6 7,257

5. L. JOINER CENTRIFUGAL DIRT COLLECTOR Filed. April '7, 192a filverli n f biyiwmeyw.fiuwl;

Patented July 26, 1927.

' UNITED s'rArEs SYLVESTER L. JOINER, OF MCGREGOR, TEXAS CENTRIFUGAL DIRT COLLECTOR.

' Application filed April 7,

The invention relates to a centrifugal dirtcollector for air brake systems. l

The object oi the PI'QSQIltlDVQliiZlOll is to improve the construction of centrifugal dirt collectors and to provide a simple, practical andell'ieient dirt collector of strong, durable and inexpensive construction designed to be applied to air brake systems o't railway cars and capable of enabling the same to have the dust and dirt and other foreign matter easily and quickly removed from the dirt collectors, without cutting out a car trom a train and without necessitating overhauling the car.

A furtherobjeet of the invention is to i provide a centrifugal dirt collector or this character adapted to permit the accui'nulated dust and dirt to be instantly discharged at anytime while the car is not in motion and from the side ot the car without the use of any tools.

Another object of the invention is to enable the present ll'llPl'OVQlllQDtS to be readily applied to the centrifugal dirt collectors in present use on railway cars without removing or discarding the main casing or bodv'containing the dust separating and collecting chan'ibers as well as to he applied to new railway cars.

\Vith these and other ob ects in v ew, the invention consists in the construction and novel. combination and arrangement of parts hereinafter .t'ully described, illustrated in the accompanying drawingsand pointed out in the claims hereto appended, it being understood that various changes in the form, proportion and other minor details of construction, Within the scope oi the claims, may be resorted to without departing from the spirt or sacrificing any of the advantages ot the invention.

In the drawings:

Figure l is a central vertical sectional view of a centrifugal dirt collector constructed in accordance with this invention and adapted to be applied to new cars.

Fig. 2 is a detailed perspective view of the deflecting guard with its support-iug posts. Fig. 3 is a central vertical sectional V ew illustrating a modification of the invention for adapting the same to be applied to cars equipped with the'Derby dirt collector.

Fig. 4 is a horizontal sectional view on the line 4-l of Fig. 1. I

In the accompanying drawing in which is illustrated the preferred embodiments of the 1926, Serial No. 100,465.

and an outlet 5 which is provided at the inner end with a depending conduit 6 extending downwardly into the dust separating chamber 2 and forming an annular passage between it and the walls of the upper portion of the dust separating chamber. The centrifugal dirt collector, which may be arranged in an air brake system at any desired point is usually placed between the triple valve and the brake pipe and air passing from the brake pipe to the triple valve enters the separating chamber in a comparatively narrow stream, the direction of the stream or current being slightly downwardly inclined to one side of the outlet pipe whereby the air discharges into theseparating chamber past said pipe. Thus the stream or current of air tends on entering the chamber 2 to pursue a spiral course to a plane at least somewhat below the mouth of the outlet pipe or conduit 6. A constant change ticles of dustor dirt carried by the air to strike against the circular wall of the separating chamber 2 and be deflected thereby in adownward direction. The entire body of air in the chamber 2 will of course be in motion during the passage of the direct current from the inlet to the outlet, but the large capacity of the chamber 2 as compared with the area of the inlet and outlet ports causes the velocity of the current to be greatly diminished while passing through the chamber, and the movement of the air will be with decreasing force towards the lower end of the said chamber 2. Thus the particles of dust deflected downward move further and further away from the direct influence of the main air current and descend b T gravity until they fall into the collecting c amber 'In falling into the collecting chambery the particles of dirt and dust pass downward beneath a deflecting guard 710- cated within the upper portion of the dust collecting chamber and consisting'of a disk having a convex or slightly rounded up er face and a substantiall flat lower face. he disk which is of slightly greater diameter than the mouth or entrance of the dust C01- guard is supported at diametrically opposite 'points by parallel vertical posts 9 which are spaced apart to provide a clear passage through a bottom outlet opening 10 which is controlled by the drain cock 8. The supporting posts which are preferably straight are located beyond and out of line with the outlet opening atthe bottom of the collecting, chamber so as not to interfere with the free, discharge of the dirt and dust. By this construction a relatively vlarge tubular outletior discharge openingis provided for the passage ofthe dust and dirt and the, latter may .bereadily removed by simply opening thedrain cock 8. The. drain cock 8 vmay be p of any desired construction and it is provided at one end with an operating handle name is preferably backed at the other end 1 by a nut 12, a coiled spring 13 being interposed between the nut and thevalve member of the drain cock for maintaining a tight connection and to effectually prevent any leakage ofthe air. The chamber or transaverse opening 14: which receives the valve .member of the drain cock may be hushed as shown but the drain cock may be constructed infany other desired manner ,as will be readily understood. v i -VVhcn the invention is to be applied to cars equipped with the Derby dust collector the plug carrying the deflector'is removed fromthe lower end-of the casing and a sleeveleis substituted for the same. The

sleeve is threaded at its upper portion at :1 6 to screw into the lower end of the casing .andit has formed integral with it upwardly extending posts 17 constructed similar to the posts-heretofore described and supporting a disk 18 constituting a deflecting guard.

The disk 18 is similar in construction to the jdlSk heretofore described and operates in a similar manner as will be readily understood. The lower portion of the sleeve or tubular member 15 is exteriorly threaded and receives a drain cock 19 constructed sima ilar to that heretofore described The form j of theiinvention illustrated in Fig. 3 of the drawin operates in exactly the same manner as the orm illustrated in Fig. 1 anda relae tively large unobstructed outlet or discharge passage-is provided for the removal of. the accumulated dust and dirt. The drain cock is adapted to be operated from the. side of 7 the car atany time when the car isstationary and it may be opened without the use of any, tools and the accumulated dust and dirt) will be instantly discharged. The removal of the dust and dirt will notrequire a car to be cut out of a train and it will also be unnecessary to frequently overhaul cars for the purpose'ofremoving accumulated dust from the dust collectors. Also the ready removalof the dust by means of the drain cock will avoid the damage which ofttimes results from the dust and dirt accumulating 'intlie dust collector and after filling the dust collector being carried to and filling the openings of the screen or strainer of the triple valve and causing the latter to be blown into the triple valve. This has frequently happened necessitating the removal of the triple valve from the car and thejtak ing apart of the triple valve in order to remove particles of the wire of the strainer from the mechanism.

What I claim is:

1. A centrifugal dirt collector for air brake systems comprisin a casing having an upper dust separating c amber and a lower dust collecting chamber provided at the bottom with a central tubularoutlet forming a discharge opening for the dust, a drain cock for controlling the discharge of the dust through the said outlet, and a substantially horizontal deflecting guard located in the up:

per portion of the dust collecting chamber below the mouth or inlet opening of" the same and being of greater diameter than the mouth or inlet and provided with supporting means located beyond and out ofline with the discharge opening so as not toobstruct with the free passage of the dust and dirt into the same, said guard permitting the dust to be discharged from the dust collecting chamber without removing the guard therefrom. i v 2. A centrifugal dust collector for: air brake systems comprising a casing having an upper dust separating chamber and a lower dust collecting chamber provided at the top with a reduced mouth or inlet and having a tubular outlet at the lower'end forming'a discharge opening, a horizontally disposed deflecting guard located in the upper portion of the dust collecting chamber below the mouth or inlet thereof and being of greater diameter than the said mouth or inlet and spaced osts supporting the deflecting guard an connected therewith at substantially diametric points, said guard permitting the dust to be discharged from the dust collecting chamber without removing the guard therefrom.

3.1L centrifugal dust collector for. air

brake systems comprising a casing having an tal deflecting guard sup orted by the said for controlling the discharge of dust and posts and located below t e upper end of the dirt without removing the guard from the said lower chamber, said tubular member dust collecting chamber. forming an unobstructed dust discharge In testimony whereof I have hereunto set 5 opening insertable through the bottom 0penmy hand.

ing of the dust collecting chamber, and a drain cock carried by the tubular member SYLVESTER L. JOINER. 

